ADS1208
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SBAS348A–MARCH 2005–REVISED MARCH 2005
TYPICAL CHARACTERISTICS
At 25°C, AVDD = BVDD = +5V, VREF = internal +2.5V, Mode 3, MCLK input = 20MHz, differential input voltage = 200mVPP
,
common-mode voltage = 1.4V, and 16-bit Sinc3 filter with OSR = 256, unless otherwise noted.
INTEGRAL NONLINEARITY vs
INPUT SIGNAL (Mode 0)
INTEGRAL NONLINEARITY vs
INPUT SIGNAL (Mode 3, MCLK = 20MHZ)
6
5
4
3
2
1
0
4
3
2
1
0
_
+25
C
_
+85
C
−
_
40
C
_
+85
C
_
+25
C
−
1
2
3
4
−
−
−
−
_
40
C
−
−
1
2
−
−
−
−
−
−
−
−
−
−
40 20
100 80
60
40
20
0
20 40
60
80 100
100 80
60
0
20 40
60
80 100
Differential Input Signal (mV)
Differential Input Signal (mV)
Figure 6.
Figure 7.
INTEGRAL NONLINEARITY vs
TEMPERATURE
GAIN ERROR vs
TEMPERATURE
0
6
5
4
3
2
1
0
M0
−
−
−
−
−
−
−
−
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
M3
M0
M3
+60
−
−
20
−
−
40
0
+20
+40
+80
40
20
0
+20
+40
+60
+80
_
_
Temperature ( C)
Temperature ( C)
Figure 8.
Figure 9.
OFFSET vs
TEMPERATURE
OFFSET vs
POWER SUPPLY
0
0
−
−
−
−
−
−
−
−
−
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
−
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
−
−
−
−
−
−
−
M0
M3
M0
M3
−
−
20
40
0
+20
+40
+60
+80
4.50
4.75
5.00
5.25
5.50
_
Temperature ( C)
Power Supply (V)
Figure 10.
Figure 11.
9
BB [ BURR-BROWN CORPORATION ]
